Abstract: A flexible, comfortable, and easily repairable EEG signal monitoring device, system and method configured for receiving and analyzing EEG signals and other user and environmental signals that is easily operate and repaired by a user and that is able to correlate received user and environmental data from one or more user to enable users or third part users to make strategic decisions about health, work, police, and military actions.

Abstract: A fieldable EEG signal monitoring device, system and method configured for receiving and analyzing EEG signals and other user and environmental signals that is easily operate and repaired by a user and that is able to correlate received user and environmental data from one or more user to enable users or third part users to make strategic decisions about health, work, police, and military actions.

Abstract: A device includes a portable chest, a radiator in the chest, a liquid pump in the chest that moves liquid through the radiator, and a fan for providing airflow across the radiator. The portable chest stores a quantity of chilled water that is pumped through the radiator by the liquid pump to chill the airflow provided by the fan.

Abstract: A device includes a portable chest, a radiator in the chest, a liquid pump in the chest that moves liquid through the radiator, and a fan for providing an airflow across the radiator. The portable chest stores a quantity of chilled water that is pumped through the radiator by the liquid pump to chill the airflow provided by the fan.

Abstract: A personal watercraft has a saddle with a seating surface, first and second opposite sides, and front and back ends. A pair of footing surfaces proceed from proximate lower edges of first and second opposite sides. A front recess is defined in the front end and has upper and lower portions that extend further away from the saddle than a medial portion. A back recess is defined in the back end and has upper and lower portions that extend further away from the saddle than a medial portion. The front and back recesses are configured to secure an inflatable body that substantially surrounds the saddle with the footing surfaces at least partially exposed.

Abstract: A device includes a portable chest, a radiator in the chest, a liquid pump in the chest that moves liquid through the radiator, and a fan for providing an airflow across the radiator. The portable chest stores a quantity of chilled water that is pumped through the radiator by the liquid pump to chill the airflow provided by the fan.

Abstract: A personal watercraft has a saddle with a seating surface, first and second opposite sides, and front and back ends. A pair of footing surfaces proceed from proximate lower edges of first and second opposite sides. A front recess is defined in the front end and has upper and lower portions that extend further away from the saddle than a medial portion. A back recess is defined in the back end and has upper and lower portions that extend further away from the saddle than a medial portion. The front and back recesses are configured to secure an inflatable body that substantially surrounds the saddle with the footing surfaces at least partially exposed.

Abstract: A method and system for the detection of electromagnetic interference is disclosed in which a telemetry coil or other magnetic sensor is used to detect a magnetic signal. If a magnetic signal is determined to be a non-telemetry signal and is time-correlated with the onset of an increase in heart rate, electromagnetic interference is assumed to be present.

Abstract: An apparatus and method for verifying capture by first and second pacing pulses in which an evoked response waveform recorded during a pacing event is compared with template waveforms representing capture by the first, second, and both pacing pulses. The evoked response is then classified as representing a type of capture represented by a template waveform if the evoked response waveform highly correlates with one template waveform and has correlation values with the other template waveforms within specified bounds.

Abstract: A cardiac rhythm management (CRM) system includes an implantable medical device that senses a wireless electrocardiogram (ECG), which is a signal sensed with implantable electrodes and approximating a surface ECG. In one embodiment, the wireless ECG is sensed as a substitute signal for the intracardiac electrogram when the sensing of the intracardiac electrogram becomes unreliable.

Abstract: An apparatus and method for verifying capture by a pacing pulse in which a test depolarization waveform recorded during a pacing event is compared with a template waveform representing capture by the pacing pulse. Capture verification in this manner may be used in pacemakers having multiple pacing channels for the atrial and/or ventricles where the multiple paces can interfere with conventional sensing of evoked responses in order to verify capture.

Abstract: Systems and methods of managing features or functions of an implantable cardiac device involve forming a baseline evoked response template prior to delivery of defibrillation therapy to a patient's heart, and acquiring a post-shock evoked response signal subsequent to defibrillation therapy delivery. The baseline evoked response template is compared to the post-shock evoked response signal. A determination is made whether to enable, disable or adjust a cardiac device feature based on the comparison. The cardiac device feature may be a therapy feature, a monitoring feature, or a diagnostic feature.

Abstract: Methods and systems involve multi-chamber cardiac capture detection utilizing sensing during a cross-chamber refractory period. First and second pacing pulses are delivered to first and second heart chamber. Capture or non-capture of the second heart chamber is determined. Sensing in the first heart chamber is performed to sense for cross-chamber propagation initiated by the second pacing pulse. Capture of the first chamber is detected if capture of the second heart chamber is detected and if the cross-chamber propagation is not detected.

Abstract: A method and apparatus for delivering cardiac resynchronization therapy (CRT) in which an evoked response electrogram is recorded during one or more cardiac cycles and used to aid in the selection of resynchronization pacing parameters and/or to monitor the effectiveness of resynchronization therapy. The morphology of an evoked response electrogram may be recorded and analyzed to determine if and when intrinsic activation of one ventricle is occurring in order to optimally adjust the programmed atrio-ventricular (AV) delay interval for ventricular resynchronization pacing of a patient with intact AV node conduction.

Abstract: A CRM system enhances intracardiac electrogram-based arrhythmia detection using a wireless electrocardiogram (ECG), which is a signal sensed with implantable electrodes and approximating a surface ECG. In one embodiment, an intracardiac electrogram allows for detection of an arrhythmia, and the wireless ECG allows for classification of the detected arrhythmia by locating its origin. In another embodiment, the wireless ECG is sensed as a substitute signal for the intracardiac electrogram when the sensing of the intracardiac electrogram becomes unreliable. In another embodiment, a cardiac signal needed for a particular purpose is selected from one or more intracardiac electrograms and one or more wireless ECGs based on a desirable signal quality. In another embodiment, intracardiac electrogram-based arrhythmia detection and wireless ECG-based arrhythmia detection confirm with each other before indicating a detection of arrhythmia of a certain type.

Abstract: An implantable medical device includes a radio-frequency (RF) telemetry circuit connected to an energy source through a power connection module to obtain power when a user initiates an RF telemetry session. After the session is completed, the power connection module shuts off the at least one portion of the RF telemetry circuit. Power-on examples include a wireless telemetry activation signal received by a low power radio receiver in the implantable device, a physical motion detected by an activity sensor therein, an activation of an inductive telemetry circuit therein, a magnetic field detected by a magnetic field detector therein, and/or a telemetry activation signal detected by a sensing circuit included therein. Power-off examples include a wireless termination signal received by the implantable device, a delay timeout after the session, and/or a signal received by an inductive telemetry circuit in the implantable device.

Abstract: A self-diagnostic system for an implantable cardiac device such as a pacemaker, cardioverter, or resynchronization device which utilizes a subcutaneous ECG channel is described. The subcutaneous ECG channel allows the device to, in real time and independent of the standard pacing and sensing circuitry, verify the presence of pacing spikes, chamber senses, and other device outputs and hence establish and verify device integrity.

Abstract: An implantable cardiac rhythm management device is configured to remove pacing artifacts from recorded electrograms by a subtraction method. A template waveform representing a recorded pace without accompanying cardiac electrical activity is generated. Such a pacing pulse template is then aligned with the instant at which a pace is delivered and subtracted from the recorded electrogram in order to remove the pacing artifact.

Abstract: A system and method for verifying capture of the heart by one or more pacing pulses using an electrogram morphology-based technique. Capture is determined by comparing an evoked response electrogram recorded during a paced cycle with a template waveform representing a paced cycle in which capture is achieved. The comparison is facilitated and made more accurate by selecting a sensing vector in which an evoked response electrogram in which no capture occurs is most dissimilar to the template.

Abstract: A method and system for the detection of electromagnetic interference is disclosed in which a telemetry coil or other magnetic sensor is used to detect a magnetic signal. If a magnetic signal is determined to be a non-telemetry signal and is time-correlated with the onset of an increase in heart rate, electromagnetic interference is assumed to be present.